Antenna



FIG. 1 is a front elevation view of an antenna, showing my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a top perspective view thereof; and,

FIG. 7 is a top perspective view thereof.

The broken lines in the figures depict a base that forms no part of theclaimed design.

CLAIM The ornamental design for an antenna, as shown and described.